I just feel theres not enough stories with naruto for this section so heres this

-naruto ends up with the death note but since he's not light intilect lvl he would use is out of the box ideas

-naruto works with the special task force to find KIRA

-and why not shikamaru who finds the death note he is really smart you could make him keep the same personality or make it a half of his and lights

pairings are what you decide but i would reccomend either misa or naomi but in the end its your call

pls give me a pm on any that are like these or if you are going to make one